Cases on Sign Law (1975) The exercise of power to regulate signs is not unlimited. This comprehensive look at the case law relating to signs. Download Cases on Sign Law. Download Wade SwormstedtWade is Executive Director of the Foundation for the Advancement of the Sign Industry. Formerly he was Editor and Publisher of Signs of the Times magazine.More Posts Posted in Amoritzation, Associations, Electronic Message Centers, Most Popular, Outdoor Advertising, Research, Sign Codes, Sign Library, Supreme Court, Temporary Signs, Visibility and Legibility.